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[2001:470:27:11::2]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-553379142aasm602968e87.125.2025.05.30.00.22.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 30 May 2025 00:22:05 -0700 (PDT) Date: Fri, 30 May 2025 10:22:04 +0300 (EEST) From: =?ISO-8859-15?Q?Martin_Storsj=F6?= To: Dmitriy Kovalenko In-Reply-To: Message-ID: References: <379d301d-1ee0-243a-256b-4a4b73e2ac99@martin.st> <2B10E794-CFC3-4CBA-9732-0E9B7C6A8CF5@outlook.com> MIME-Version: 1.0 Subject: Re: [FFmpeg-devel] [PATCH 1/2] swscale: rgb_to_yuv neon optimizations X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Cc: FFmpeg development discussions and patches Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: On Fri, 30 May 2025, Dmitriy Kovalenko wrote: > All the comments were addressed If you fail to read the inline responses, we can end this conversation right here. > And how did you test the prefetch, because I literally run a native > benchmarking on the device right now and I see that with the patch > applied I am getting 5% of performance improvement. Maybe there is an > issue in the way you measure the timers? I can for sure remove them > because I anyway use my own implementation that is 5-10x faster than the > ffmpeg's, but I am genuinely curious how is it possible that you see > different benchmarking results. I tested with checkasm, with patch 1/2, on Linux on a Cortex A53, as-is and with the prefetch instructions removed. // Martin _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".